The Use Of Genetic Tagging To Study Interaction Between Farmed And Wild Atlantic Cod Stocks ...
No abstracts are to be cited without prior reference to the author.Escapement of farmed fish from the aquaculture is considered as a risk for negative genetic impacts on native gene pools. In order to investigate potential interbreeding between cultured and wild Atlantic cod, Gadus morhua L, a genet...
| Main Authors: | , , , , , |
|---|---|
| Format: | Conference Object |
| Language: | unknown |
| Published: |
ASC 2009 - Theme session Q
2024
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.17895/ices.pub.25074440 https://ices-library.figshare.com/articles/conference_contribution/The_Use_Of_Genetic_Tagging_To_Study_Interaction_Between_Farmed_And_Wild_Atlantic_Cod_Stocks/25074440 |
| Summary: | No abstracts are to be cited without prior reference to the author.Escapement of farmed fish from the aquaculture is considered as a risk for negative genetic impacts on native gene pools. In order to investigate potential interbreeding between cultured and wild Atlantic cod, Gadus morhua L, a genetically marked cod strain was developed. These fish are homozygote for a rare allele in one of the glucosephosphate isomerase locus (GPI-1*30) expressed in white muscle tissue. Offspring from this strain were first used in large scale enhancement experiments at three locations in western Norway (1990 – 1994). As expected, the releases were followed by a significant increase of the overall frequencies of the marker allele in all locations, but the frequency declined rapidly thereafter. After about 10 years, however, significant higher frequency was only detected in one region, suggesting survival to maturation and some reproduction success of the released cod. Mature cod possessing the marker allele were collected ... |
|---|